It is for a 10 unit apartment building. It was working until the postal worker turned the key to unlock the front door and the left hand side of the unit fell while remaining attached by wiring.
When anyone tries to contact people in the building by pushing the call buttons nothing happens. All units have this problem.
The postal worker can still turn the key to unlock the door. People inside can push the front door unlock button and it works.
There is no sound at either end. In cannot talk or hear outside and outside can not talk or hear inside.
I know for sure the speaker needs to be replaced because it is torn.
I could not find any loose wires anywear causing the problem.
It is rusty on the inside here and there. The PCB board has warped somewhat with time.
Can it be fixed?
How long will it take?
What parts do I send to you?
How much can I expect the cost to be?